right now the napa river is reaching is highest level in downtown napa. john alston is at veterans memorial park. reporter: napa river is expected to reach its peak level between now and 6:00. however, no flooding is expected in the city of napa. officials and residents are crediting a flood project that is still underway. the sign says flooded, and the vons memorial park was supposed to be closed to the public at a precaution, but that didn't stop people from bellying up to the railing to see the swollen napa river for themselves. it's big, the river project seems to be working. i was a big skeptic, but i think it's doing its job. reporter: upstream, about five miles north of town, some residents were no so leisurely as they watched the current rise. kohl is where the napa river is expected to go a foot aboveed in stage. >> could get wet on the property. i 1/2 natural drainage that runs threw the vineyards and the creek. hopefully i'll stay dry. >> in rutherford we found portions of vineyard underwater. erosion is a concern for grape growers. along main